Ring tool



L. SHELL.

RING TOOL.

APPLICATION FILED AUGLZ, 192:.

1,41 0,4 1 5. Patented Mar. 21, 1922.

mi a 1 I' "Wm" I Z? /o INVENTOR [Mm/ 4M I BY W WITNESS:

UNITED STATES PATENT OFFICE.

LESTER SHELL, 0F HOPKINS, MISSOURI.

RING TOOL.

Application filed August 2,

T 0 all to 7mm it may concern Be it known that I, Lnsrrnn SHELL, a citizen oil the United States, residing at Hopkins, in the county of Neda-way and State of Missouri, have invented new and useful Improvements in Ring Tools, of which the following is a specification.

This invention relates to tools, particularly to tools for holding piston rings while the rings are being dressed or sharpened prior to their disposition upon the piston oi an engine, and has for its object the provision of a device adapted to be secured within a vise or the like and so constructed as to embracingly engage and hold a piston ring so that the ends thereof may be filed for fitting the piston ring properly to the piston with which it is to be associated.

An important and more specific object is the provision of a tool oi this character which is constructed very similarly to a piston ring a squeezer but which is provided with means whereby the ring may be rigidly supported with its split disposed between the handles of the device in convenient position to be filed so as to effect proper feeding.

An additional object is the provision of: a device of this character which will be simple and inexpensive in manufacture, highly efficient in use, durable in service, and a general improvement in the art.

lVith the above and other objects and advantages in view, the invention consists in the details of construction to he hereinafter more fully described and claimed and illustrated in the accompanying drawings in which-- Figure 1 is an elevation of my device showing a piston ring associated therewith,

Figure 2 is a perspective view of my tool without having a ring associated therewith,

Figure 3 is a cross sectional view through the tool, looking toward the split therein, and

Figure 4: is a detail cross sectional view on the line ll of Figure 2.

Referring more particularly to the drawings, I have shown my device as comprising a circular band 10 which is split and which has its ends formed with extensions 11 constituting handles. This band 10 is of course of flexible material and is very similar to a piston ring squeezer or compressor. In carrying out my invention 1 provide two pairs oi? arcuate strips 12 which are soldered Specification of Letters Patent.

Patented Mar. 21, 1922.

1921. Serial No. 489,232.

or otherwise suitably secured upon the band 10 at the split therein, these strips projecting inwardly of the space between the handles 11. These strips are arranged in spaced relation whereby to define a channel-like space within which is engaged the piston ring A to be filed and fitted. It is also preferable that the ends of the strips 12 be inclined to correspond with the proper in clination of the ends of the piston ring to be filed, this inclination of the ends of the strips serving as a guide "for the proper treatment of the ends of the piston ring.

Secured upon the band 10 opposite the split therein or opposite the space between the handles 11, is an extension 14; which may be held in placev by soldering, rivets, screws, or the like, and this extension is adapted to be engaged within a vise or other similar holding means whereby to hold my device rigid so that the ring held therein may be worked upon.

In the use of the device it will be seen that the piston ring to be treated or fitted, is disposed within the band 10 with its split disposed between the handles 11, the ring fitting within the space between the pairs of strips 12 so that when the ends of the ring are filed laterally, movement of the ring with respect to the holding band 10 will be positively prevented. It will be seen that when a ring is thus held, the ends thereof may be very quickly and easily filed down so Y that the ring "may be fitted to the piston with which it is intended to be associated.

From the foregoing description and a study of the drawings it will be apparent that l. have tliuis provided a very simple and consequently inexpensive device for holding a piston ring during fitting, filing, or other treatment thereof, by means of which it will be rendered of the proper dimensions or otherwise fit for use in association with the piston of the engine. Owing to the simplicity of the construction of my device and owing to the fact that there are no moving parts, it will be quite obvious that there is nothing to get out of order and that my de vice should have an extremely long life.

While I have shown and described the preferred embodiment of my invention, it is of course to be understood that I reserve the right to make such changes in the form, construction and arrangement of parts as will not depart from the spirit of the invention or the scope oi": the subjoincd claims.

Having thus described my invention, I claim: 7

1. A device of the character described comprising an almost circular band having its ends extended radially to define handles, pairs of arcuate strips secured to the inner surface 01' said band and defining a groove adapted to receive and hold a piston ring to be fitted, the ends of said strips projecting inwardly beyond said handles.

2. A device of the character described comprising an almost circular band having its ends extended radially todefine handles, pairs of arcuate strips secured to the inner surface of said band and defining a groove adapted to receive and hold a piston ring to be fitted, the ends of said strips projecting inwardly beyond said handles, the adjacent extremities of said pairs of strips being complementarily beveled.

In testimony whereof I my si natnre.

LESTER srfELL. 

